Finding the Fourth Proportional to 4,257,119,855.40, 6,385,679,783.10 and 2,515,693,986.60
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Solution
The fourth proportional to 4,257,119,855.40, 6,385,679,783.10 and 2,515,693,986.60 is: 3,773,540,979.90
Step by Step Solution
- Step 1: Write the proportion equation
4,257,119,855.40 : 6,385,679,783.10 = 2,515,693,986.60 : x - Step 2: Convert to fraction form
4,257,119,855.40/6,385,679,783.10 = 2,515,693,986.60/x - Step 3: Cross multiply
4,257,119,855.40x = 6,385,679,783.10 × 2,515,693,986.60 - Step 4: Simplify right side
4,257,119,855.40x = 16,064,416,230,697,863,168 - Step 5: Solve for x
x = 16,064,416,230,697,863,168/4,257,119,855.40 - Step 6: Final answer
x = 3,773,540,979.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.